常見例句雙語例句In fact, the fallback mode is a simple operation mode of the moving block system in the non-ATC mode.後備模式是移動閉塞系統(tǒng)在非ATC模式下的一種簡化運營。This paper describes the origin, definition and function of fallback mode of moving block system for urban rail transit.介紹城市軌道交通中，移動閉塞系統(tǒng)的後備模式的由來、定義及其功能。But when loops, several spread-spectrum radios and centre control unit (moving block system with 'centralized' structure) fail, the system can not be running in the ATC mode.但是儅環(huán)線、多個擴頻電臺、中央控制單元（“集中式”移動閉塞系統(tǒng)）等設(shè)備出現(xiàn)故障時，系統(tǒng)將無法工作在ATC模式下。 返回 moving block system